Front harvesting attachment

Abstract

A front harvesting attachment for a self-propelled harvesting machine having a central part pivotally mounted onto an intake channel of the harvesting machine, side parts that are moveable relative to the central part between an operating position, wherein the side parts are positioned on either side of the central part, and a raised transport position. Adjusting devices move the side parts between the operation and raised transport positions. Immobilizing devices selectively prevent movement of the front harvesting attachment relative to the intake channel during transport of the harvesting attachment. The immobilizing devices are coupled to the adjusting devices such that the immobilizing devices are actuated, thereby preventing movement of the front harvesting attachment relative to the intake channel, when the adjusting devices have moved the side parts to the raised transport position.

Description

FIELD OF THE INVENTION[0001]The invention concerns a front harvesting attachment for a self-propelled harvesting machine with a center and side parts that are pivotally mounted to an intake channel of a harvesting machine.BACKGROUND OF THE INVENTION[0002]Prior agricultural mowing machines include a vehicle with several mowing units arranged to the side of the vehicle and alongside each other. The vehicle includes a carrier extending transverse to the direction of operation onto which a first mowing unit is fastened. A second, outer mowing unit is pivotally fastened to the carrier. The mowing units can be brought into a non-operating position, wherein the carrier is pivoted upward by a hydraulic cylinder, about an axis aligned with the direction of operation relative to the harvesting machine. This movement carries the first mowing unit, while simultaneously, the second mowing unit is pivoted inward, by a second hydraulic cylinder, about an axis extending in the direction of operatio...

AI Technical Summary

Benefits of technology

[0008]Immobilizing devices prevent oscillating movement of the front harvesting attachment relative to the intake channel during transportation. Adjusting devices pivot the side parts between the operating position and the transport position, and simultaneously, activate the immobilizing devices.

[0009]In this way the front harvesting attachment is held stationary relative to the intake channel when the side parts are located in the transport position. In addition the immobilizing devices are released automatically when the side parts are moved to the operating position. It is not possible to move the side parts to the transport position without activating the immobilizing devices, therefore, locking the front harvesting attachment in position cannot be forgotten or overlooked.

Problems solved by technology

Here a separate hydraulic cylinder is provided to immobilize the front harvesting attachment, resulting in a relatively high cost.

There is also the danger that the attachment will inadvertently not be locked before operation on public roads.

It is not possible to move the side parts to the transport position without activating the immobilizing devices, therefore, locking the front harvesting attachment in position cannot be forgotten or overlooked.

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